title: Endoscopic needle-knife therapy for ileal pouch sinus: a novel approach for the surgical adverse event (with video).
abstract: BACKGROUND
  Pouch sinus is an adverse event in patients undergoing ileal pouch surgery.
  
  
  OBJECTIVE
  To evaluate the efficacy of needle-knife therapy in managing pouch sinus and to assess factors associated with the healing of pouch sinus.
  
  
  METHODS
  An historical cohort study from a prospectively collected database.
  
  
  METHODS
  A high-volume specialized pouch center.
  
  
  METHODS
  From tertiary-care pouch center.
  
  
  METHODS
  Endoscopic needle-knife therapy.
  
  
  RESULTS
  This cohort consisted of 65 patients. Men accounted for 76.9% (n = 50). The median interval from colectomy to the diagnosis of pouch sinus was 4.0 years (interquartile range [IQR]: 2.0-7.5). Pouch sinus was located at the anastomosis in 59 patients (90.8%), at the mid pouch suture line in 4 patients (6.2%), and at the tip of "J" in 2 patients (3.1%). The mean depth of the pouch sinus was 4.4 ± 1.8 cm. Twenty patients (30.8%) had complex pouch sinuses. After a median of 2.0 needle-knife therapies (IQR: 1.5-3.5) during a follow-up period of 1.1 years (IQR: 0.4-2.8), 28 patients (43.1%) with pouch sinus experienced a complete response, 27 (41.5%) had a partial response, and 10 (15.4%) had persistent sinus. Fifty-three patients (81.5%) maintained a functional pouch at the last follow-up. Multivariate analysis showed that a longer duration from colectomy to diagnosis of pouch sinus (odds ratio: 0.85; 95% confidence interval: 0.73-0.99; P = .033) and complex sinuses (odds ratio: 0.17; 95% confidence interval: 0.04-0.70; P = .014) were inversely associated with the healing of pouch sinuses, whereas the increased sessions of needle-knife therapy (odds ratio: 1.36; 95% confidence interval: 1.01-1.81; P = .041) improved the healing of the pouch sinuses.
  
  
  CONCLUSIONS
  Single-center study with a relatively small number of patients.
  
  
  CONCLUSIONS
  In experienced hands, endoscopic needle-knife therapy is an efficacious and safe procedure for pouch sinuses. A longer duration from colectomy to diagnosis of pouch sinus and complex pouch sinuses appeared to be associated with a higher risk for nonhealing of the sinus, suggesting that early diagnosis and intervention have an impact on outcomes.
authors.affiliation: Department of Colorectal Surgery, the Cleveland Clinic Foundation, Cleveland, Ohio, USA.
authors.forename: Xian-Rui
authors.initials: XR
authors.lastname: Wu
authors.affiliation: Division of Gastroenterology and Liver Disease, University Hospitals Case Medical Center, Case Western Reserve University, Cleveland, Ohio, USA.
authors.forename: Richard C K
authors.initials: RCK
authors.lastname: Wong
authors.affiliation: Department of Gastroenterology/Hepatology, the Cleveland Clinic Foundation, Cleveland, Ohio, USA. Electronic address: shenb@ccf.org.
authors.forename: Bo
authors.initials: B
authors.lastname: Shen
mesh_terms: D000328:Adult; D039021:Colonic Pouches / Q000009:adverse effects*; D016099:Endoscopy, Gastrointestinal / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis / Q000209:etiology / Q000601:surgery; D016737:Proctocolectomy, Restorative / Q000009:adverse effects*; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome; D014945:Wound Healing; D055815:Young Adult
keywords: CD; Crohn's disease; DopUS; Doppler US; IBD; IPAA; IQR; ileal pouch-anal anastomosis; inflammatory bowel disease; interquartile range